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57025141 = 71803171
BaseRepresentation
bin1101100110001…
…0001001110101
310222022011210021
43121202021311
5104044301031
65354125141
71261464025
oct331421165
9128264707
1057025141
112a209918
12171207b1
13ba77bb4
147805a85
155016511
hex3662275

57025141 has 4 divisors (see below), whose sum is σ = 57828384. Its totient is φ = 56221900.

The previous prime is 57025139. The next prime is 57025169. The reversal of 57025141 is 14152075.

57025141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57025141 - 21 = 57025139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57025121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401515 + ... + 401656.

It is an arithmetic number, because the mean of its divisors is an integer number (14457096).

Almost surely, 257025141 is an apocalyptic number.

It is an amenable number.

57025141 is a deficient number, since it is larger than the sum of its proper divisors (803243).

57025141 is an equidigital number, since it uses as much as digits as its factorization.

57025141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803242.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 57025141 is about 7551.4992551148. The cubic root of 57025141 is about 384.9066867798.

The spelling of 57025141 in words is "fifty-seven million, twenty-five thousand, one hundred forty-one".

Divisors: 1 71 803171 57025141